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25 wrz 2010 · My understanding is that GREATEST() and LEAST() are not part of the SQL standard, but are very common. I'm wondering, is there a way to clone the functionality of GREATEST keeping within the SQL standard?
14 gru 2023 · The GREATEST function requires at least one argument and supports no more than 254 arguments. Each expression can be a constant, variable, column name or function, and any combination of arithmetic, bitwise, and string operators.
9 cze 2023 · The SQL GREATEST function returns the “greatest” or largest value in a set of values that you provide to it. The SQL LEAST function returns the “least” or smallest value in a set of values that you provide to it, and it’s the opposite of the GREATEST function.
3 kwi 2018 · Replicating the exact logic of greatest() is tricky because of the way it handles NULL values. The equivalent logic would be: select (case when date1 is null or date2 is null or date3 is null then null. when date1 >= date2 and date1 >= date3 then date1. when date2 >= date3 then date2.
5 dni temu · Returns the greatest value among X1,...,XN. If any argument is NULL , returns NULL . Otherwise, in the case of floating-point arguments, if any argument is NaN , returns NaN .
The SQL functions greatest and least take one or more arguments and return the largest or smallest value if none of the arguments is null. SELECT GREATEST(1, 2, 3) FROM … Greatest and least are scalar functions, not aggregate functions.
Show you how to use the MySQL GREATEST and LEAST functions to find the maximum/minimum values of two or more fields respectively.
